Home / 3,113.48-4,290.70-2,227.75

Finding the Fourth Proportional to 3,113.48, 4,290.70 and 2,227.75

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Solution

The fourth proportional to 3,113.48, 4,290.70 and 2,227.75 is: 3,070.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.48 : 4,290.70 = 2,227.75 : x
  2. Step 2: Convert to fraction form
    3,113.48/4,290.70 = 2,227.75/x
  3. Step 3: Cross multiply
    3,113.48x = 4,290.70 × 2,227.75
  4. Step 4: Simplify right side
    3,113.48x = 9,558,574.33
  5. Step 5: Solve for x
    x = 9,558,574.33/3,113.48
  6. Step 6: Final answer
    x = 3,070.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.